Superconductivity and weak anti-localization in nodal-line semimetal SnTaS2

被引：1

作者：

Singh, M. ^{[1
]}

Saha, P. ^{[1
]}

Nagpal, V ^{[1
]}

Patnaik, S. ^{[1
]}

机构：

[1] Jawaharlal Nehru Univ, Sch Phys Sci, New Delhi, India

来源：

SUPERCONDUCTOR SCIENCE & TECHNOLOGY | 2022年 / 35卷 / 08期

关键词：

superconductivity; single crystal; nodal-line semimetal; UPPER CRITICAL-FIELD; MAGNETORESISTANCE; TRANSPORT;

D O I：

10.1088/1361-6668/ac7586

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Topological semimetals with superconducting properties provide an emergent platform to explore the properties of topological superconductors. We report magnetization, and magneto-transport measurements on high quality single crystals of transition metal dichalcogenide SnTaS2. It is a nodal line semimetal with superconducting transition below T (c) = 2.9 K. Moderate anisotropy (gamma = 3.1) is observed in upper critical fields along H//c and H//ab plane. In the normal state we observe large magneto-resistance and weak anti-localization effect that provide unambiguous confirmation of topological features in SnTaS2. Therefore, genuine topological characteristics can be studied in this material, particularly with regard to microscopic origin of order parameter symmetry.

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页数：7

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